Caltric Deck Wash Water Port Plate Compatible with John Deere Z225 Z235 Z245 Z255 Z315E Z320M Z320R

What It Is

The Caltric Deck Wash Water Port Plate is a replacement water nozzle and mounting plate for the deck wash system on select John Deere Z‑Track zero‑turn mowers. It lets you attach a garden hose to flush grass clippings from the underside of the cutting deck after mowing.

Fitment & Compatibility

Before buying, verify your mower’s model and deck size. This Caltric plate is listed for John Deere Z225, Z235, Z245, Z255, Z315E, Z320M, and Z320R models. It fits both 48‑inch and 54‑inch decks on those machines. The OEM part number is John Deere GY21126 – if your original part has that number, this will match. No modifications or extra hardware are needed; it bolts directly into the existing deck wash port hole. If your mower has a different deck design (e.g., 42‑inch or 60‑inch), this plate will not fit.

Key Things to Know

• Build quality: Caltric is an aftermarket brand. The plate is made of plastic with a brass hose fitting. It’s a direct functional replacement for the OEM part, though some users note the plastic feels slightly less robust than the original.
• Installation: Very easy – remove the old port plate (usually two screws), clean the area, and screw on the new one with a small amount of thread sealant on the hose fitting to prevent leaks. No special tools required.
• Common gotcha: The water port can clog if you don’t flush the deck immediately after use. Rinse the plate after each use to keep the nozzle clear.
• Price vs OEM: At $17, it’s roughly half the cost of the genuine John Deere part. For occasional home use, the savings are worthwhile. For heavy commercial use, the OEM part may last longer.

Should You Buy It

Buy this if you have one of the listed Z‑Track models and your original deck wash port is broken, leaking, or missing. It’s a budget‑friendly fix for a simple part that does its job well for home lawn care. If you need a commercial‑grade unit or have a different deck size, stick with the OEM part.